My take: there’s an optimal number of pixels you need to complete the tasks you need to complete. Worry about that number, not the number of monitors you have.

My take: there’s an optimal number of pixels you need to complete the tasks you need to complete. Worry about that number, not the number of monitors you have. A bit more than a week ago, I would've agreed with that. My opinion changed after a visit to my ophthalmologist. He helped me realize that my eyesight was not deteriorating in general, but that my eyes were getting tired under certain circumstances, namely when I was working from home. At home I use my company laptop and I hook it up to my 37" HDTV, with resolution of 1920x1080. The doctor explained that the combination of the resolution and the screen size made it impossible for my eyes to cover everything I need without doing lots of little "lookup movements". As a consequence, my eyes would get tired and I would have trouble reading stuff. The suggested remedy was to either use a smaller screen or a lower resolution. Since it worked out really well for my problem, I'll keep believing that it's better to have two or more screens with not-so-high resolution, than one screen with huge resolution.